ARES_PARSE_PTR_REPLY(3)

NAME
ares_parse_ptr_reply - Parse a reply to a DNS query of type PTR into a hostent

SYNOPSIS
#include <ares.h>
int ares_parse_ptr_reply(const unsigned char *abuf, int alen,
                         const void *addr, int addrlen,
                         int family, struct hostent **host);

DESCRIPTION
The ares_parse_ptr_reply function parses the response to a query of type PTR into a struct hostent. The parameters abuf and alen give the contents of the response. The parameters addr, addrlen, and family specify which address was queried for; they are not used to verify the response, merely used to fill in the address of the struct hostent. The resulting struct hostent is stored in allocated memory and a pointer to it stored into the variable pointed to by host. It is the caller's responsibility to free the resulting host structure using ares_free_hostent(3) when it is no longer needed.

RETURN VALUES
ares_parse_ptr_reply can return any of the following values:

ARES_SUCCESS
    The response was successfully parsed.

ARES_EBADRESP
    The response was malformatted.

ARES_ENODATA
    The response did not contain an answer to the query.

ARES_ENOMEM
    Memory was exhausted.

SEE ALSO
ares_gethostbyaddr(3), ares_free_hostent(3)

AUTHOR
Greg Hudson, MIT Information Systems
Copyright 1998 by the Massachusetts Institute of Technology.